Routing means for telephone system



July 16, 1963 w. H. BERCH 3,098,125

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1. IN A TELEPHONE SYSTEM, A PLURALITY OF TELEPHONE EXCHANGES, CALLEXTENDING CIRCUITS, AND TRUNK CIRCUITS INTERCONNECTING SAID EXCHANGES TOPROVIDE PRIMARY AND ALTERNATE TRUNK ROUTES BETWEEN AT LEAST TWO OF SAIDEXCHANGES, ROUTING MEANS AT ONE OF SAID TWO EXCHANGES FOR CONTROLLINGTHE EXTENSION OF THE CALL FORWARDED THERETO AND COMPRISING A GROUP OFROUTE DETERMINING RELAYS, MEANS FOR APPLYING A FIRST PORTION OFDIRECTIVE IMPULSE SIGNALS TO SAID ROUTING MEANS IN RESPONSE TO THEINITIATION OF EACH CONNECTION AT SAID ONE EXCHANGE, FIRST MEANS FOROPERATING A SELECTED ONE OF SAID RELAYS IN RESPONSE TO THE APPLICATIONOF SAID DIRECTIVE SIGNALS TO SAID ROUTING MEANS, AND SECOND MEANS FORCONTROLLING THE SUBSEQUENT OPERATION OF SAID ROUTING MEANS IN A MANNERWHICH IS DETERMINED BY THE PARTICULAR ONE OF SAID RELAYS WHICH ISOPERATED TO COMPLETE A CONNECTION BETWEEN SAID TWO EXCHANGES OVER APRIMARY, OR ALTERNATE ROUTE, IF AVAILABLE, AS MAY BE MOST EXPEDIENTDEPENDING UPON THE AVAILABILITY OF THE TRUNK CIRCUITS INTERCONNECTINGSAID TWO EXCHANGES.
 61. IN A TELEPHONE SYSTEM, A TRANSLATOR FOR USE WITHA PLURALITY OF GROUPS OF REGISTERS, SAID TRANSLATOR COMPRISINGVOLTAGE-OPERATED CONNECTOR MEANS EACH OF WHICH IS ASSOCIATED WITH ANINDIVIDUAL GROUP OF REGISTERS, EACH OF SAID CONNECTOR MEANS BEINGOPERABLE TO FORWARD TO SAID TRANSLATING MEANS A GROUP OF VOLTAGE SIGNALSTO BE TRANSLATED WHICH ARE APPLIED THERETO FROM THE GROUP OF REGISTERSWITH WHICH THAT CONNECTOR MEANS IS ASSOCIATED, AND MEANS FOR OBTAININGTHE OPERATING VOLTAGE FOR EACH OF SAID CONNECTOR MEANS SOLELY FROM THEGROUP OF REGISTERS WITH WHICH THAT CONNECTOR MEANS IS ASSOCIATED.